Update examples

Author: mxjp

examples/src/view-push.tsx

@@ -1,6 +1,10 @@
 /*
 
 # Custom View / Push
+
+!!! tip
+	This example exists solely to demonstrate what's possible with the view API. You will most likely never need to implement a custom view, except in cases with extreme performance requirements.
+
 This example shows a custom view that pushes elements onto itself.
 
 This can be useful when you only ever append or prepend elements and you require the absolute best performance possible.

examples/src/view-rotate.tsx

@@ -1,6 +1,10 @@
 /*
 
 # Custom View / Rotate
+
+!!! tip
+	This example exists solely to demonstrate what's possible with the view API. You will most likely never need to implement a custom view, except in cases with extreme performance requirements.
+
 This example shows a custom view that rotates the order of it's logical children when a signal is updated.
 
 You can toggle the visibility of the entire view or one of it's children to demonstrate boundary tracking.